import  numpy as np
#import os
import cv2
from  matplotlib import  pyplot as plt

img=np.zeros((512,512,3),np.uint8)

cv2.rectangle(img,(384,0),(510,128),(0,255,0),3)

cv2.circle(img,(445,60),65,(0,0,255),-1)

cv2.ellipse(img,(256,256),(100,50),0,0,180,255,-1)

cv2.line(img,(0,0),(511,511),(255,0,0),2)

pts=np.array([[10,5],[20,30],[70,23],[50,20]],np.int32)

pts=pts.reshape((-1,1,2))

cv2.polylines(img,[pts],True,(0,255,255))

font=cv2.FONT_HERSHEY_SIMPLEX

cv2.putText(img,'OpenCV',(10,500),font,4,(255,255,255),2)

cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
